A candidate was asked to find 7/8 of a positive number. He found out 7/18th of the number and got an answer, which was 770 less than the correct answer. What is the original number?
Correct Answer : B
Suppose n is an integer such that the sum of the digits of n is 2, and 1010 < n < 1011. The number of different values for n is
How many integers, greater than 999 but not greater than 4000, can be formed with the digits 0, 1, 2, 3 and 4, if repetition of digits is allowed?
There are 60,84 and 108 students respectively writing exams in three different exams. If student writing different exams cannot sit in the same room and each room has to seat the same number of students, what is the least number of rooms to seat everyday?